Abstract
In the paper, the stress intensity factor (SIF) for an axial crack in a polymethyl methacrylate (PMMA) cylindrical shell is studied using the optical caustic method. First, the optical analysis of transmitted caustics is proposed based on the geometry conditions of PMMA cylindrical shell. Then, the governing equations that are related to the caustic measurements and the elastic stress fields at an axial crack tip in the cylindrical shell are derived in terms of the SIF, material constant, shell radius and shell thickness. Finally, the characteristics of stress singularity for mode I edge crack in the PMMA cylindrical shell specimen with different crack length, shell thickness and shell radius are experimentally investigated using the caustic method under three-point-bend loading, also the SIF obtained from the caustic measurement shows a good agreement with finite element results.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
